Zodiac Jandy Pool/Spa Combo Automation Bundle iAquaLink IQ904-PS.
–The Various Pool and Spa Heating Systems to Consider
Basically, the heating system for your pool or spa is determined by a variety of factors such as budget, needs, desires and physical location of the same. In regard to this, there are four main options of pool or spa heating systems:-
Solar heating system
This is heating obtained directly from the sun and the greatest advantage is that it is completely free. Through direct heat transfer, water from your spa or pool is circulated through the collector often situated on the roof.
Most solar heating systems incorporate a PCB controller that flow water to the roof when there is enough sunshine.